SOUTH PLAINFIELD, New Jersey (AP) -- Taco Bell ordered the removal of green onions from its 5,800 restaurants nationwide Wednesday after tests suggested they might be responsible for the E. coli outbreak that sickened at least three dozen people in three states.

The fast-food chain said preliminary testing by an independent lab found three samples of green onions appeared to have a harsh strain of the bacteria.

Taco Bell said that the tests are not conclusive but that it immediately notified health authorities and its restaurants while it awaits a final analysis.

"In an abundance of caution, we've decided to pull all green onions from our restaurants until we know conclusively whether they are the cause of the E.coli outbreak," said Greg Creed, president of Irvine, California-based Taco Bell.

Taco Bell established a telephone number, 1-800-TACO BELL, for those with concerns about the outbreak.

Reducing Carbs can keep you looking young

Insulin has been labelled as the main culprit to invite ageing early. Eating too much of carbohydrates results in high insulin levels. Increased insulin levels tell the body to store carbohydrates as fat. They also tell it not to release any stored fat. It makes sure that you stay fat. Even worse, high insulin levels also suppress the growth hormone that is responsible for remaining young.

High levels of insulin can cause major health problems like diabetes, hypertension, obesity, high levels of cholesterol, heart disease, kidney disease, female infertility and neuro-degeneration. Greasy fast-food, nutrient-deprived processed foods and over-cooked vegetables are the junk food. Polished grains, sweets, soft drinks, and high-starch foods like potatoes, burgers and pizzas lead to overweight, and give you the looks and feeling of being older. If you are experiencing any of the following symptoms, chances are that the excess carbohydrates in your body are, in part or whole, to blame: